EMC1187 datasheet(29/47 Pages) MICROCHIP

29 / 47 page

Triple Channel 1°C Temperature Sensor with Hardware Thermal Shutdown and 1.8V SMBus Communications

Datasheet

SMSC EMC1187

Revision 1.0 (07-11-13)

DATASHEET

Bit 4 - HIGH - This bit is set when any of the temperature channels exceeds its programmed high limit.

See the High Limit Status Register for specific channel information (Section 6.16). When set, this bit

will assert the ALERT pin.

Bit 3 - LOW - This bit is set when any of the temperature channels drops below its programmed low

limit. See the Low Limit Status Register for specific channel information (Section 6.17). When set, this

bit will assert the ALERT pin.

Bit 2 - FAULT - This bit is asserted when a diode fault is detected on any of the external diode

channels. See the External Diode Fault Register for specific channel information (Section 6.9). When

set, this bit will assert the ALERT pin.

Bit 1 - THERM - This bit is set when the any of the temperature channels exceeds its programmed

Therm Limit. See the Therm Limit Status Register for specific channel information (Section 6.18).

When set, this bit will assert the THERM pin.

Bit 0 - HWSD - This bit is set when the External Diode 1 Temperature exceeds the Hardware Thermal

Shutdown Limit set by the pull-up resistors on the ALERT and SYS_SHDN pins. When set, this bit will

assert the SYS_SHDN pin.

6.4

Configuration Register 03h / 09h

The Configuration Register controls the basic operation of the device. This register is fully accessible

at either address.

Bit 7 - MASK_ALL - Masks the ALERT pin from asserting.



‘0’ - (default) - The ALERT pin is not masked. If any of the appropriate status bits are set the

ALERT pin will be asserted.



‘1’ - The ALERT pin is masked. It will not be asserted for any interrupt condition unless it is

configured in comparator mode. The Status Register will be updated normally.

Bit 5 - ALERT/COMP - Controls the operation of the ALERT pin.



‘0’ (default) - The ALERT acts as an Alert pin and has interrupt behavior as described in

Section 5.5.1.



‘1’ - The ALERT acts as a THERM pin and has comparator behavior as described in Section 5.5.2.

In this mode the MASK_ALL bit is ignored.

Bit 4 - RECD - Disables the Resistance Error Correction (REC) for External Diode.



‘0’ (default) - REC is enabled for External Diode.



‘1’ - REC is disabled for External Diode.

Bit 3 - RECD2 - Disables the Resistance Error Correction (REC) for External Diode 2 and External

Diode 3.



‘0’ (default) - REC is enabled for External Diode 2 and External Diode 3.



‘1’ - REC is disabled for External Diode 2 and External Diode 3.

Table 6.4 Configuration Register

ADDR

R/W

DEFAULT

03h

R/W

Configuration

MASK_

ALL

ALERT/

COMP

RECD

RECD2

RANGE

DAVG_

DIS

APDD

00h

09h

EMC1187 데이터시트(PDF) 29 Page - Microchip Technology

EMC1187 데이터시트(HTML) 29 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47

데이터시트 다운로드

링크 URL